rebuild-bottles.yml

---
name: Rebuild Bottles
run-name: Rebuild Bottles (${{ github.event.inputs.formula || 'all' }})
permissions: {}

on:
  schedule:
    - cron: '0 2 * * 0'  # Run weekly on Sunday at 2 AM UTC
  workflow_dispatch:
    inputs:
      formula:
        description: 'Formula name to rebuild (e.g., sunshine, sunshine-beta, cuda@13.1)'
        required: true
        type: string

jobs:
  detect-formulas:
    name: Detect Formulas
    outputs:
      formulas: ${{ steps.detect.outputs.formulas }}
    permissions:
      contents: read
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2

      - name: Detect formula files
        id: detect
        env:
          INPUT_FORMULA: ${{ github.event.inputs.formula }}
        run: |
          if [ "${GITHUB_EVENT_NAME}" == "workflow_dispatch" ]; then
            # Manual trigger - use the input formula name
            FORMULAS="[\"${INPUT_FORMULA}\"]"
          else
            # Scheduled - find all formula files and extract names
            FORMULA_FILES=$(find Formula -name '*.rb' -type f)
            ALL_FORMULAS=$(echo "$FORMULA_FILES" | xargs -I {} basename {} .rb | jq -R -s -c 'split("\n")[:-1]')

            # Load skip list
            SKIP_LIST=$(jq -c '.formulas' ci_config/rebuild_bottles_skiplist.json)

            # Filter out formulas in the skip list
            FORMULAS=$(echo "$ALL_FORMULAS" | jq -c --argjson skip "$SKIP_LIST" '. - $skip')

            echo "All formulas: ${ALL_FORMULAS}"
            echo "Skip list: ${SKIP_LIST}"
          fi
          echo "formulas=${FORMULAS}" >> "${GITHUB_OUTPUT}"
          echo "Formulas to rebuild: ${FORMULAS}"

  rebuild:
    name: Rebuild ${{ matrix.formula }}
    env:
      COMMIT_MESSAGE: 'chore: ${{ matrix.formula }}: rebuild bottles'
      MATRIX_FORMULA: ${{ matrix.formula }}
      PR_BRANCH_NAME: bot/update-${{ matrix.formula }}-formula
    needs: detect-formulas
    permissions:
      contents: read
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        formula: ${{ fromJson(needs.detect-formulas.outputs.formulas) }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
        with:
          fetch-depth: 0
          persist-credentials: false

      - name: Find formula file
        id: find
        run: |
          # Find the formula file path from the formula name
          FORMULA_NAME="${MATRIX_FORMULA}"
          FORMULA_FILE=$(find Formula -name "${FORMULA_NAME}.rb" -type f | head -n 1)

          if [ -z "${FORMULA_FILE}" ]; then
            echo "Error: Formula file for '${FORMULA_NAME}' not found"
            exit 1
          fi

          echo "formula_file=${FORMULA_FILE}" >> "${GITHUB_OUTPUT}"
          echo "Found formula file: ${FORMULA_FILE}"

      - name: Update formula with rebuild comment
        id: update
        env:
          FORMULA_FILE: ${{ steps.find.outputs.formula_file }}
        run: |
          # Current rebuild number (timestamp-based for uniqueness)
          REBUILD_NUM=$(date -u +%s)
          COMMENT="# rebuild: ${REBUILD_NUM}"

          # Check if a rebuild comment already exists
          if grep -q "^# rebuild:" "${FORMULA_FILE}"; then
            # Update existing comment
            sed -i "s/^# rebuild:.*/${COMMENT}/" "${FORMULA_FILE}"
            echo "action=updated" >> "${GITHUB_OUTPUT}"
          else
            # Add new comment at the end of the file
            echo "${COMMENT}" >> "${FORMULA_FILE}"
            echo "action=added" >> "${GITHUB_OUTPUT}"
          fi

          # Show the changes
          echo "Changes made to ${FORMULA_FILE}:"
          git diff "${FORMULA_FILE}"

      - name: Push changes
        uses: actions-js/push@5a7cbd780d82c0c937b5977586e641b2fd94acc5  # v1.5
        with:
          author_email: ${{ secrets.GH_BOT_EMAIL }}
          author_name: ${{ vars.GH_BOT_NAME }}
          branch: ${{ env.PR_BRANCH_NAME }}
          github_token: ${{ secrets.GH_BOT_TOKEN }}
          message: ${{ env.COMMIT_MESSAGE }}
          force: true

      - name: Create or update Pull Request
        env:
          ACTION: ${{ steps.update.outputs.action }}
          GH_TOKEN: ${{ secrets.GH_BOT_TOKEN }}
        run: |
          # Check if PR already exists
          EXISTING_PR=$(gh pr list --head "${PR_BRANCH_NAME}" --json number --jq '.[0].number' || echo "")

          if [ -z "${EXISTING_PR}" ]; then
            echo "Creating new PR..."
            PR_URL=$(gh pr create \
              --title "${COMMIT_MESSAGE}" \
              --body "Automatic rebuild bottles for \`${MATRIX_FORMULA}\`." \
              --head "${PR_BRANCH_NAME}" \
              --base master)
            PR_NUMBER=$(echo "${PR_URL}" | grep -oE '[0-9]+$')
            echo "Created new PR #${PR_NUMBER}: ${PR_URL}"

            # Enable auto-merge
            echo "Enabling auto-merge for PR #${PR_NUMBER}..."
            gh pr merge "${PR_NUMBER}" \
              --auto \
              --delete-branch \
              --squash \
              --subject "${COMMIT_MESSAGE}"
            echo "Auto-merge enabled"
          fi